Former Councilman Dan Garodnick, the lead co-sponsor of the bill and dad of two, said changing diapers on the go in the city was a "special" kind of challenge.

"When you do have the security of finding a restroom — which is by no means a guarantee, by the way — and you prepare yourself mentally and emotionally for what you might find when you start removing layers, there should be a space for you to change a diaper," he said.

The lawmakers were upstaged at the event by several cute babies, including the newborn Alejandro Reynoso, who slept through his dad Councilman Antonio Reynoso's remarks, and two-year-old Donovan Richards III — who literally stole the microphone from his father, Councilman Donovan Richards, before leading the people gathered behind them on the steps in a round of applause.